<ul class="wxlist">
    <li>
        <form name="frmInfoSearch" method="post" action="{:InfoSearchAction()}">
        <div><input  name="Keywords" value="{$SearchWord}"  type="text"  placeholder="{$Think.lang.InputKeyword}"  /></div>
        <div><input name="btnSearch" class="ui-btn-submit"  type="submit" value="{$Think.lang.WebsiteSearch}"  /></div>
        </form>
    </li>
</ul>